关键词:
比较
含量
耐腐蚀钢
定义
测定
含量测定
尺寸选定
数字
优质钢
夹杂物
检验
解释
材料测试
金相学
显微分析
显微术
非金属的
非金属夹杂物
非金属
参数
试样制备
抽样方法
不锈钢
标准图
标准系列
钢
测试
标准号:
BS EN 10247-2007
摘要:
This European Standard defines a method of microscopic non-metallic inclusion assessment using *** method does not apply to particles of a length less than 3,0 μm or a width smaller than 2,0 μm. Definedby a product standard or agreement between the involved parties for certain special products, inclusions witha width below 2,0 μm can only be evaluated according to their length. Elongated inclusions with a lengthabove 1 410 μm are counted separately and are beyond the upper application limit of this standard. Globularinclusions with a diameter of 3,0 μm and above are included in the *** is assumed, if particles are elongated or if there are stringers of particles, that they are parallel to eachother. Other arrangements are not covered by this standard. This European Standard applies to samples witha microscopic precipitation approaching random *** the data of measurements obtained by this method, evaluation according to other standards can *** European Standard does not apply to free cutting *** The basic principle of this European Standard allows the determination of non-metallic inclusion content byimage analysis techniques.